Sectional conduit.



F. J. MEDWAY.

SECTIONAL CONDUIT.

APPLICATION msn ocT.|8.1915.

Patented May 23,1916.

2 SHEETS-SHEET I.

nmllv F. J. lVIEDWAY.

SECTIONAL CONDUIT.

APPLICATION FILED OCT-18.19l5.

2 SHEETS-SHEET 2.

FRED JOHN MEDWAY, OF WEEHAWKEN, NEW JERSEY, ASSIGN'OR TO H. iN.I JOHNS- MANVILLE COMPANY, A CORPORATION OF N EW YORK.

SECTIONAL CONDUIT.

l Specification of Letters Patent.

Patented May 23, 19116.

Application led October 18, 1915. Serial No. 56,582. i

To all whom it may concern.'

Be it known that I, FRED JOHN apcitizen of the United States of residing at Weehawken, county of Hudson, State of New Jersey, have invented certain new and useful Improvements in Sectional Conduits, of which the following is a speciication.

My invention relates generally to underground steam conduits of the character illustrated and described in Letters Patent of the United States No. 638,931, granted to Kimball and McKenzie, Decemberv 12, 1899 and No. 1,149,920, granted to Kimball, Aug. 10, 1915.

The invention is directed specifically to certain improvements in the construction and arrangement of supports for the conduit and the piping within the same.

1n the Kimball and McKenzie patent referred to, a form of support is disclosed MEDWAY, America,

- which consists in makingevery third, fourth or fifth section of the conduit of- T-form and utilizing the vertical leg of the T as a supporting pedestal which rests on the bottom of the trench and is bedded in and partly filled with concrete. for the steam pipes within the conduit, are set inthe cement lilling of the vertical leg of the T-sections and to facilitate accurate placing of these roll-carriers and the settingup of the T-supports, the. conduit sections are constructed so as to be readily separable into halves along lines extending in the direction of their length, permitting the lower half sections of the conduit to be permanently assembled in the trench throughout the entirelength of the conduit, if desired, and the steam pipes arranged on the roll carriers therein, before the upper half sections are placed in position, which is the final step in completing the conduit.

The construction'above described, while generally satisfactory, is open to-serious objection by reason of the time, labor and cost involved in they manufacture and use of the T- sections and it is the object of the present invention to obviate this by dispensing with the use of Ts and constructing the supports wish a Roll carriers entirely of concrete, which permits the conduit' sections to be manufactured of uniformrv size and shape and results in a material savlng 1n the cost of manufacture and loss through breakage in shipping and laying. he accompanying drawings will serve to illustrate one form of construction suitable for carrying my invention into effect. l understood, however, that 1 do not limit myself to showing in these drawings as various changes may be made without departing from the spirit and scope of the present invention.

1n the drawings: Figure 1, is a horizontal section through the trench containing the completed conduit, the latter being shown partly in plan and partly in section. Fig. 2, is a vertical section through the trench taken on the line S2, S2 of Fig. 1. Fig. 3, is a similar view taken centrally of the trench, with the conduit shown in elevation. Fig. 4, is a central vertical longi` tudinal section. Fig. 5, is a crosssection on the line S5, S5, of Fig. l. 'Fig 6, is a similar view, indicating by dotted lines the mannerof removing the curved forms after vthe concrete pedestal is completed. Fig. 7,

one of the curved forms and Fig. 8, is an edge view thereof. Fig. 9

1s a side view of and Fig. 10 are views in perspective of the separated halves of adjoining conduit sections. Fig. 11, is a view in side elevation of the conduit section in connection with which the concrete supporting pedestal is formed. Fig.. 12, is an end View, and Fig. 13, 1s a view 1n elevation of the under side thereof.

Referring now to the drawings, the conduit, as ordinarily constructed, is laid under ground in a trench such as is represented at 1, below and centrally of which there is an under drain of vitriiied B and S tile, laid open joint.

The conduit is made sections 2, shaped to lit by being provided with a bell, 3, at one end to receive the plain or spigot end 4, of the adjoining section. When thus assembled and laid with cemented joints, there is formed up of a series of pipe one within the other vtained gas or liquid, the pipes within the i conduit have loosely packed around @themv a continuous water and air tight casing suitable for containing one or more lines of piping conveying steam or the like.

, In order to reduce to a minimum the transmission' of heat to or from the conasbestos orother non-heat conducting material indicated at 5, which is employed in quantity suiiicient to fill the interior of the conduit, as shown.

Usually the conduit sections are longitudinally scored, perforated -or otherwise formed, as indicated at 6, to be readily split into halves and in constructing the con-- duit, the bottom halves are first placed in position in the trench onv a bed of gravelor broken stone 7, and the joints cemented to permanently unite the samel in assembledy relation ready to vreceive the steam pipes, suitable supporting frames l8, being provided at every third, fourth, fifth or sixth section for carrying rolls for each pipe.

As above pointed out, the present mvention is directed mainly to providing a comparatively inexpensive and at the same time efficient and satisfactory mounting for the rollcarrying frames which, in order to meet practical requirements, must be supported independentlyy of the c onduit.

In order Ito accomplish this without employing Ts or other special forms dii'ering 1n. shape fromthe sections which go to make up the body of the conduit, I provide,

inthe manufacture of certain of the sections, by scoring or perforations, indicated at 9, for the subsequent removal of the end portion ofthe bottom half so that when the sections are assembled, a series of, preferably equispaced, bottom openings 10, will be formed throughout -the length ofthe cony duit, through which the roll-carrying frames project into the same from suitable supports 11, which serve to close the open; ings. By circumferentially scoring 0r perforating the bottom half ofthese sections,

as indicated at 12; the end portion thereof,

to any required length, may be readily broken olf in the same manner and at the same time the section is' spllt into halves,

4 and in setting such a short-length bottom half at a distance from and in such relation to the bell end of anadjoining full length- -'bottom half section, (see Figs. 9 and 10,)

that the mating upper half sections will register with the same, a bottom opening of the required dimensions for the accommodation of the roll-carrying frame will be provided, as shown for example, in Fig. 3.

The supports for the roll-carrying'frames are preferably given a cradle form to over- Hlap and embrace the adjoining ends of the full and short length lower half sections, as

' shown-in Figs. 3 and 5, andare formed of concrete, being shaped to close vthe bottom opening in the conduit and conform to the inner curved wall thereof, in effect supply.-

ing the missing end portion to the short' length bottom half section and restoring it to complete form.

In constructing the support, the necessaryspace, to` a suitable depth and length,

about the adjoining ends of the full and short length half sections,`may be cleared of gravel', etc., by means of thin metal end plates 13, such as shown (Figs. 6, 7 and 8), and after the roll-carrying frame is temporarily secured in proper relative position (Fig. 3),- the concrete is poured in, filling the cleared space and assuming, under proper troweling, the form of a cradle in which the ends of the full and short length lowerhalf sections rest and are supported and by which they are operatively united and made practically continuous.

In `conjunction with the conduit, a separate narrow slab of tile or other suitable material 14, so placed in the'bottom of the conduit as to provide a slight s nace throughout the length of the conduit line for the purpose of collecting and discharging at the lower end of the'conduit such accumulation of moisture as might result quired excepting the terminal sections, which have not been herein' previously referredto as .they form no part of the present invention. i

Having described my invention, I claim: 1. A conduit for containing steam pipes and the like having in combination a series of lengthsof pipe arranged end to end and split longitudmally in a horizontal plane, the lower section -of certain lengths, having a portion removed at one end, a body of `concrete embedded in the earth and covering the opening so formed, and a lpipe supporting frameset in said concrete.

2. A condult for containing steam pipes and the like having in combination a series of lengths ofpipe arranged end tolend and split longitudinally -in a horizontal .plai1e,'

the lower section of certain lengths having a .portion removed at one end, a body of concrete embedded inthe earth and covering the opening so formed, and a pipe supporting frame set in said concrete, together with a horizontal plate resting loosely in the bottom section of each pipe length and so as to leave crevices for the How of liquid a body ofloose non-heat conducting matebetween anda body of loose non-heat con- 10 rial, lling the conduit above the plate. vducting material llingv the conduit above 3. A conduit for containing steam pipes said plates. Y 5 and the like comprising in combination a FRED JOHN' MEDWAY.

series of tubular sections arranged end to Witnesses: v end, a series of horizontal plates resting' lM. K. LOTTERN, Y loosely on the bottom of the tubular sections WALTER H. PUMPHREY. 

